The HADALUS vehicle launched payloads while submerged during a Navy exercise on an undersea test rangeBoth companies invested in the development of the vehicleA prototype was developed in under 18 monthsRaytheon, an RTX company, and Composite Energy Technologies have shown that their HADALUS unmanned undersea vehicle can launch payloads while submerged. RTX said the test result was a step toward a single undersea platform that could handle detection, reacquisition and engagement within one mission. What Came Before the HADALUS Demonstration? The two companies ran an earlier in-water demonstration of an extended-range uncrewed undersea vehicle in Narragansett Bay in July 2025, using Navy-developed autonomy software available to industry. That vehicle went from concept to demonstration in four months.